Felbamate Drug Level
| Label Mnemonic: | FBM |
| Epic code: | LAB3125 |
| Downtime form: | A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Serum
Specimen
Instructions:
Timing of specimen collection: Pre-dose (trough) draw - At steady state
concentration.
Collection Medium:
 |
| Red top tube 5 mL (Clot Activator) |
Alternate
Collection Media:
Green top tube 4 mL (Na Heparin) or Lavender top tube 3 mL (EDTA) or Pink top tube 6 mL (K2-EDTA)
Minimum:
Adult and Pediatrics Preferred Minimum: 1.0 mL serum
Adult and Pediatrics Absolute Minimum: 0.5 mL serum
Adult and Pediatrics Absolute Minimum: 0.5 mL serum
Rejection Criteria:
Gel separator tubes
Turn Around
Time:
1 week upon receipt at reference laboratory
Reference Range:
Therapeutic Range: 30-60 μg/mL
Toxic Level: Greater than or equal to 100 µg/mL
Toxic Level: Greater than or equal to 100 µg/mL
Test
Limitations:
The proposed therapeutic range for seizure control is 30-60 µg/mL.
Pharmacokinetics varies widely, particularly with co-medications, age,
and/or compromised renal function. No critical value has been defined.
Methodology:
High Performance Liquid Chromatography (HPLC)
CPT Code:
80167